Question

In a group of 70 cars tested by a garage in a city,
15 had faulty tyres
20 had faulty brakes
18 exceed the allowable emission limit.
Also, 5 cars had faulty tyres and brakes
6 failed on tyres and emission
10 failed on brakes and emission
4 cars were unsatisfactory in all three aspects.
How many cars had no faults in these three checks?
Draw the appropriate venn diagram.

Answer 1

Answer:

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